I'll go on a few dates, make out a little at the end of them, but then things fizzle out. The girls will be really bad at responding to texts, sometimes ignore direct questions to meet up for a date, and never text me uninitiated, and when this happens I just stop contacting them. But I'll usually text randomly a week later and she will act super happy to hear from me, go on a date, then things will repeat where she seems happy, then goes cold again. WTF. Is it ever worth asking what is going on? Besides just moving on, is there a good way to proceed with girls like this?